java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 16:04:58,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 16:04:58,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 16:04:58,827 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 16:04:58,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 16:04:58,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 16:04:58,830 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 16:04:58,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 16:04:58,835 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 16:04:58,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 16:04:58,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 16:04:58,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 16:04:58,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 16:04:58,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 16:04:58,843 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 16:04:58,844 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 16:04:58,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 16:04:58,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 16:04:58,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 16:04:58,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 16:04:58,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 16:04:58,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 16:04:58,864 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 16:04:58,865 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 16:04:58,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 16:04:58,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 16:04:58,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 16:04:58,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 16:04:58,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 16:04:58,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 16:04:58,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 16:04:58,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 16:04:58,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 16:04:58,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 16:04:58,874 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 16:04:58,875 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 16:04:58,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 16:04:58,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 16:04:58,893 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 16:04:58,893 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 16:04:58,894 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 16:04:58,894 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 16:04:58,895 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 16:04:58,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 16:04:58,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 16:04:58,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 16:04:58,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 16:04:58,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 16:04:58,896 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 16:04:58,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 16:04:58,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 16:04:58,896 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 16:04:58,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 16:04:58,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 16:04:58,897 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 16:04:58,899 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 16:04:58,899 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 16:04:58,953 INFO ]: Repository-Root is: /tmp [2018-06-22 16:04:58,971 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 16:04:58,977 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 16:04:58,978 INFO ]: Initializing SmtParser... [2018-06-22 16:04:58,978 INFO ]: SmtParser initialized [2018-06-22 16:04:58,979 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 [2018-06-22 16:04:58,980 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 16:04:59,070 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 unknown [2018-06-22 16:04:59,411 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 [2018-06-22 16:04:59,415 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 16:04:59,419 INFO ]: Walking toolchain with 4 elements. [2018-06-22 16:04:59,419 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 16:04:59,419 INFO ]: Initializing ChcToBoogie... [2018-06-22 16:04:59,420 INFO ]: ChcToBoogie initialized [2018-06-22 16:04:59,423 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,477 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59 Unit [2018-06-22 16:04:59,477 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 16:04:59,480 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 16:04:59,516 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 16:04:59,516 INFO ]: Boogie Preprocessor initialized [2018-06-22 16:04:59,539 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,539 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,560 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,561 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,565 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,566 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,568 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... [2018-06-22 16:04:59,570 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 16:04:59,571 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 16:04:59,571 INFO ]: Initializing RCFGBuilder... [2018-06-22 16:04:59,571 INFO ]: RCFGBuilder initialized [2018-06-22 16:04:59,572 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 16:04:59,583 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 16:04:59,583 INFO ]: Found specification of procedure False [2018-06-22 16:04:59,584 INFO ]: Found implementation of procedure False [2018-06-22 16:04:59,584 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 16:04:59,584 INFO ]: Found specification of procedure state [2018-06-22 16:04:59,584 INFO ]: Found implementation of procedure state [2018-06-22 16:04:59,584 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 16:04:59,584 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 16:04:59,584 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 16:04:59,910 INFO ]: Using library mode [2018-06-22 16:04:59,911 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:04:59 BoogieIcfgContainer [2018-06-22 16:04:59,911 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 16:04:59,912 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 16:04:59,912 INFO ]: Initializing TraceAbstraction... [2018-06-22 16:04:59,916 INFO ]: TraceAbstraction initialized [2018-06-22 16:04:59,916 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:04:59" (1/3) ... [2018-06-22 16:04:59,917 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be77d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:04:59, skipping insertion in model container [2018-06-22 16:04:59,917 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:04:59" (2/3) ... [2018-06-22 16:04:59,917 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be77d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:04:59, skipping insertion in model container [2018-06-22 16:04:59,917 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:04:59" (3/3) ... [2018-06-22 16:04:59,926 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 16:04:59,936 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 16:04:59,943 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 16:04:59,985 INFO ]: Using default assertion order modulation [2018-06-22 16:04:59,985 INFO ]: Interprodecural is true [2018-06-22 16:04:59,985 INFO ]: Hoare is false [2018-06-22 16:04:59,985 INFO ]: Compute interpolants for FPandBP [2018-06-22 16:04:59,985 INFO ]: Backedges is TWOTRACK [2018-06-22 16:04:59,985 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 16:04:59,985 INFO ]: Difference is false [2018-06-22 16:04:59,985 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 16:04:59,986 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 16:05:00,008 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 16:05:00,018 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 16:05:00,018 INFO ]: Found error trace [2018-06-22 16:05:00,019 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:05:00,019 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:05:00,025 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 16:05:00,027 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:05:00,027 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:05:00,064 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:00,064 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:05:00,064 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:00,137 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:00,354 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 16:05:00,356 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 16:05:00,356 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 16:05:00,357 INFO ]: Interpolant automaton has 4 states [2018-06-22 16:05:00,369 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 16:05:00,370 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 16:05:00,372 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 16:05:00,469 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:05:00,470 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 16:05:00,470 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 16:05:00,471 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 16:05:00,471 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:05:00,487 INFO ]: With dead ends: 13 [2018-06-22 16:05:00,487 INFO ]: Without dead ends: 13 [2018-06-22 16:05:00,490 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 16:05:00,504 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 16:05:00,535 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 16:05:00,536 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 16:05:00,537 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 16:05:00,538 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 16:05:00,538 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:05:00,538 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 16:05:00,538 INFO ]: Interpolant automaton has 4 states. [2018-06-22 16:05:00,538 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 16:05:00,540 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 16:05:00,540 INFO ]: Found error trace [2018-06-22 16:05:00,540 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:05:00,540 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:05:00,540 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 16:05:00,540 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:05:00,540 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:05:00,541 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:00,541 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:05:00,541 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:00,652 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:02,121 WARN ]: Spent 1.25 s on a formula simplification. DAG size of input: 122 DAG size of output: 54 [2018-06-22 16:05:02,179 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 16:05:02,179 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:05:02,179 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:05:02,186 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:05:02,260 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:02,275 INFO ]: Computing forward predicates... [2018-06-22 16:05:03,068 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:05,461 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:05,511 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:05,547 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:05,572 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:05,621 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:05,641 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:05,673 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:07,452 WARN ]: Spent 279.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 28 [2018-06-22 16:05:07,676 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 16:05:07,710 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 16:05:07,710 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 16:05:07,711 INFO ]: Interpolant automaton has 9 states [2018-06-22 16:05:07,711 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 16:05:07,711 INFO ]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-06-22 16:05:07,711 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 16:05:07,995 WARN ]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-06-22 16:05:08,125 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:05:08,126 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 16:05:08,126 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 16:05:08,126 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 16:05:08,126 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:05:08,127 INFO ]: With dead ends: 15 [2018-06-22 16:05:08,127 INFO ]: Without dead ends: 15 [2018-06-22 16:05:08,127 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-06-22 16:05:08,128 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 16:05:08,129 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 16:05:08,129 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 16:05:08,130 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 16:05:08,130 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 16:05:08,130 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:05:08,130 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 16:05:08,130 INFO ]: Interpolant automaton has 9 states. [2018-06-22 16:05:08,130 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 16:05:08,131 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 16:05:08,131 INFO ]: Found error trace [2018-06-22 16:05:08,131 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:05:08,131 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:05:08,131 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 16:05:08,131 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:05:08,131 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:05:08,132 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:08,132 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:05:08,132 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:08,209 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:08,626 WARN ]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-06-22 16:05:08,847 WARN ]: Spent 151.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 5 [2018-06-22 16:05:08,849 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 16:05:08,849 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:05:08,849 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:05:08,864 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 16:05:08,944 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 16:05:08,944 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:08,949 INFO ]: Computing forward predicates... [2018-06-22 16:05:09,187 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,250 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:09,253 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:09,468 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,522 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:09,525 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,615 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:09,617 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,661 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,710 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:09,753 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:09,961 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,065 WARN ]: Spent 300.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 14 [2018-06-22 16:05:12,265 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:12,279 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,283 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,285 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,287 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,297 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,305 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,315 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,317 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,319 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:12,327 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,330 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,331 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:12,332 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:12,340 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:05:14,595 WARN ]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2018-06-22 16:05:14,771 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 16:05:14,805 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 16:05:14,805 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-22 16:05:14,806 INFO ]: Interpolant automaton has 13 states [2018-06-22 16:05:14,806 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 16:05:14,806 INFO ]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-06-22 16:05:14,806 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2018-06-22 16:05:15,429 WARN ]: Spent 475.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2018-06-22 16:05:15,626 WARN ]: Spent 141.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-06-22 16:05:15,754 WARN ]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-06-22 16:05:15,786 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:05:15,786 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 16:05:15,787 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 16:05:15,787 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-22 16:05:15,787 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:05:15,788 INFO ]: With dead ends: 17 [2018-06-22 16:05:15,788 INFO ]: Without dead ends: 17 [2018-06-22 16:05:15,788 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-06-22 16:05:15,788 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 16:05:15,790 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 16:05:15,790 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 16:05:15,791 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 16:05:15,791 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 16:05:15,791 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:05:15,791 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 16:05:15,791 INFO ]: Interpolant automaton has 13 states. [2018-06-22 16:05:15,791 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 16:05:15,792 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 16:05:15,792 INFO ]: Found error trace [2018-06-22 16:05:15,792 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:05:15,792 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:05:15,792 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-22 16:05:15,792 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:05:15,792 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:05:15,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:15,793 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 16:05:15,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:15,886 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:16,201 WARN ]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2018-06-22 16:05:16,438 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2018-06-22 16:05:16,586 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 16:05:16,586 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:05:16,586 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:05:16,600 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 16:05:16,734 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 16:05:16,734 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:16,740 INFO ]: Computing forward predicates... [2018-06-22 16:05:19,736 WARN ]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2018-06-22 16:05:20,147 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 16:05:20,166 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 16:05:20,167 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-06-22 16:05:20,167 INFO ]: Interpolant automaton has 17 states [2018-06-22 16:05:20,167 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 16:05:20,167 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 16:05:20,167 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2018-06-22 16:05:21,076 WARN ]: Spent 792.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 114 [2018-06-22 16:05:21,515 WARN ]: Spent 318.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 59 [2018-06-22 16:05:21,972 WARN ]: Spent 425.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2018-06-22 16:05:22,433 WARN ]: Spent 423.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2018-06-22 16:05:22,474 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:05:22,474 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 16:05:22,476 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 16:05:22,476 INFO ]: Start accepts. Automaton has 17 states. Word has length 21 [2018-06-22 16:05:22,476 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:05:22,477 INFO ]: With dead ends: 19 [2018-06-22 16:05:22,477 INFO ]: Without dead ends: 19 [2018-06-22 16:05:22,477 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2018-06-22 16:05:22,477 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 16:05:22,481 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 16:05:22,481 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 16:05:22,481 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 16:05:22,481 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 16:05:22,481 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:05:22,481 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 16:05:22,481 INFO ]: Interpolant automaton has 17 states. [2018-06-22 16:05:22,481 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 16:05:22,482 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 16:05:22,482 INFO ]: Found error trace [2018-06-22 16:05:22,482 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:05:22,482 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:05:22,482 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-22 16:05:22,482 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:05:22,482 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:05:22,483 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:22,483 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 16:05:22,483 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:05:22,592 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:23,685 WARN ]: Spent 738.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 92 [2018-06-22 16:05:24,012 WARN ]: Spent 245.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-06-22 16:05:24,224 WARN ]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2018-06-22 16:05:24,560 WARN ]: Spent 319.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-06-22 16:05:24,754 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2018-06-22 16:05:24,904 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2018-06-22 16:05:25,146 WARN ]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2018-06-22 16:05:25,307 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 5 [2018-06-22 16:05:25,312 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 16:05:25,312 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:05:25,312 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:05:25,323 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 16:05:25,439 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 16:05:25,439 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:05:25,461 INFO ]: Computing forward predicates... [2018-06-22 16:05:25,846 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:25,867 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:26,063 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:26,124 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:05:26,303 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:26,329 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:26,438 WARN ]: Simplifying disjunction of 7960 conjuctions. This might take some time... [2018-06-22 16:05:29,758 INFO ]: Simplified to disjunction of 7960 conjuctions. [2018-06-22 16:05:47,777 WARN ]: Spent 1.52 s on a formula simplification. DAG size of input: 284 DAG size of output: 40 [2018-06-22 16:05:47,792 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:53,834 WARN ]: Spent 2.67 s on a formula simplification. DAG size of input: 290 DAG size of output: 74 [2018-06-22 16:05:53,866 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:53,875 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:53,877 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:53,885 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:53,886 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:53,887 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:53,889 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:53,890 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:05:53,891 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:05:53,940 WARN ]: Simplifying disjunction of 18560 conjuctions. This might take some time... Received shutdown request... [2018-06-22 16:06:07,123 INFO ]: Timeout while computing interpolants [2018-06-22 16:06:07,324 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:06:07,324 WARN ]: Verification canceled [2018-06-22 16:06:07,328 WARN ]: Timeout [2018-06-22 16:06:07,329 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:06:07 BoogieIcfgContainer [2018-06-22 16:06:07,329 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 16:06:07,330 INFO ]: Toolchain (without parser) took 67914.32 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 251.6 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 16:06:07,331 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 16:06:07,331 INFO ]: ChcToBoogie took 60.40 ms. Allocated memory is still 305.1 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 16:06:07,331 INFO ]: Boogie Preprocessor took 90.00 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 16:06:07,332 INFO ]: RCFGBuilder took 340.39 ms. Allocated memory is still 305.1 MB. Free memory was 247.6 MB in the beginning and 231.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 16:06:07,332 INFO ]: TraceAbstraction took 67416.23 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 231.6 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 16:06:07,335 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 60.40 ms. Allocated memory is still 305.1 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 90.00 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 340.39 ms. Allocated memory is still 305.1 MB. Free memory was 247.6 MB in the beginning and 231.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67416.23 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 231.6 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 26 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 18560 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 67.3s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 45 SDslu, 206 SDs, 0 SdLazy, 160 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 26388 SizeOfPredicates, 138 NumberOfNonLiveVariables, 1071 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 20/68 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_all_e3_1068_e4_275.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_16-06-07-347.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_all_e3_1068_e4_275.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_16-06-07-347.csv Completed graceful shutdown